CN216691206U - Engine lubricating oil way - Google Patents
Engine lubricating oil way Download PDFInfo
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- CN216691206U CN216691206U CN202123039704.4U CN202123039704U CN216691206U CN 216691206 U CN216691206 U CN 216691206U CN 202123039704 U CN202123039704 U CN 202123039704U CN 216691206 U CN216691206 U CN 216691206U
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- oil
- duct
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- cylinder cover
- cylinder body
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- 239000010687 lubricating oil Substances 0.000 title abstract description 28
- 239000003921 oil Substances 0.000 claims abstract description 195
- 238000005461 lubrication Methods 0.000 claims description 10
- 239000010727 cylinder oil Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000010705 motor oil Substances 0.000 description 13
- 230000001050 lubricating effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an engine lubricating oil way which comprises an oil supply assembly positioned at the bottom of an engine, wherein an oil outlet of the oil supply assembly is branched into a cylinder body oil duct assembly for supplying oil to a cylinder body and a cylinder cover oil duct assembly for supplying oil to a cylinder cover. According to the scheme, the pressure drop of the lubricating oil in the oil duct can be effectively reduced, the lubricating oil ways of the cylinder body and the cylinder cover are connected in parallel, the quick response of oil pressure control is effectively improved, and meanwhile the waste of the flow of the lubricating oil is reduced.
Description
Technical Field
The utility model relates to the field of automobile engines, in particular to an engine lubricating oil way.
Background
At present, on an engine, a series of fully variable valve lift motion components such as an eccentric shaft, an intermediate rocker arm and the like are additionally arranged to realize the adjustment of valve lift and gas distribution phase. However, because of the increase of the parts of the engine, the parts need to be lubricated, and the parts which cannot be lubricated in the traditional oil way arrangement mode of the engine cannot meet the requirements.
Chinese patent CN209195503U discloses an engine lubricating oil circuit, which has the scheme: the oil cylinder comprises a first cylinder body main oil duct, a second cylinder body main oil duct, a first straight oil duct, a second straight oil duct, a third straight oil duct and a fourth straight oil duct which are all arranged in an engine cylinder body, and also comprises a first cylinder cover main oil duct, a second cylinder cover main oil duct, a fifth straight oil duct and a sixth straight oil duct which are all arranged in an engine cylinder cover; the upper end part of the first straight oil duct is communicated with the first cylinder main oil duct, and the first straight oil duct is used for conveying lubricating oil to the first cylinder main oil duct; the front end part of the second straight oil duct is communicated with the left end part of the first cylinder body main oil duct, the rear end part of the second straight oil duct is communicated with the left end part of the second cylinder body main oil duct, the lower end part of the third straight oil duct is communicated with the front end part of the second straight oil duct, the upper end part of the third straight oil duct is communicated with the lower end part of the fifth straight oil duct, the upper end part of the fifth straight oil duct is communicated with the left end part of the first cylinder cover main oil duct, the lower end part of the fourth straight oil duct is communicated with the rear end part of the second straight oil duct, the upper end part of the fourth straight oil duct is communicated with the lower end part of the sixth straight oil duct, and the upper end part of the sixth straight oil duct is communicated with the left end part of the second cylinder cover main oil duct; the cylinder cover is characterized in that a plurality of main journal oil ducts are connected to the first cylinder body main oil duct, a plurality of PCJ oil ducts are connected to the second cylinder body main oil duct, a plurality of air inlet cam journal oil ducts are connected to the first cylinder cover main oil duct, and a plurality of exhaust cam journal oil ducts are connected to the second cylinder cover main oil duct.
However, the oil pump is generally disposed at the bottom of the engine and is far from the cylinder head of the engine, and in the conventional oil passage arrangement, the lubricating oil flows out of the oil pump, then flows into the engine filter through a long oil passage, is filtered by the engine filter, then is conveyed to the main oil passage, and then is distributed to each component and friction pair through each branch in the main oil passage. In the prior art, lubricating oil to the cylinder cover completely comes from the main oil duct of the cylinder body, the cylinder cover and the cylinder body are lubricated in series, and the whole oil path is very long. Generally, the time from the starting of an engine to the pressure building of the whole lubricating system is about 7S, which is more harmful to some parts with higher lubricating requirements, such as the lubricating of a hydraulic tappet in a high-pressure fuel system and the intermediate body of a supercharger, and according to the arrangement of an oil path of the existing lubricating system, the dry friction phenomenon exists in both the tappet and the supercharger, and the service life is reduced. Therefore, the lubricating oil circuit arranged in the mode has the defects of long oil circuit, long oil pressure establishing time, large pressure loss and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automobile engine lubricating oil path, which can shorten the length of an oil path leading to a cylinder cover.
In order to achieve the purpose, the utility model adopts the technical scheme that: an engine lubricating oil way comprises an oil supply assembly positioned at the bottom of an engine, wherein an oil outlet of the oil supply assembly is branched into a cylinder body oil duct assembly for supplying oil to a cylinder body and a cylinder cover oil duct assembly for supplying oil to a cylinder cover.
According to the scheme, the pressure drop of the lubricating oil in the oil duct can be effectively reduced, the lubricating oil ways of the cylinder body and the cylinder cover are connected in parallel, the quick response of oil pressure control is effectively improved, and meanwhile the waste of the flow of the lubricating oil is reduced.
Drawings
Fig. 1 and 2 are schematic structural diagrams of the present invention.
Detailed Description
An engine lubricating oil way comprises an oil supply assembly 10 positioned at the bottom of an engine, wherein an oil outlet of the oil supply assembly 10 is branched into a cylinder oil channel assembly 20 for supplying oil to a cylinder and a cylinder cover oil channel assembly 30 for supplying oil to a cylinder cover.
In the scheme, the engine oil is divided into two paths, one path of the engine oil is led to the cylinder body and enters the cylinder body oil channel assembly 20, and the other path of the engine oil is led to the oil channel on the shell and supplies oil to the cylinder cover from the front end of the cylinder body. The oil duct is shortened by utilizing structural arrangement, the pressure loss of a pipeline is reduced, the lubricating oil ways of the cylinder body and the cylinder cover are connected in parallel, the quick response of oil pressure control is effectively improved, the influence of 20 pressure fluctuation of the cylinder body oil duct assembly on the lubrication of the cylinder cover is greatly reduced, and the waste of the flow of lubricating oil is reduced. The lubricating oil for lubricating the cylinder cover does not need to pass through the cylinder oil duct assembly 20, and the path length of the lubricating oil reaching the cylinder cover is shortened. Since the oil supply assembly 10 is typically located at the bottom of the engine and is therefore located further from the cylinder head, the solution of the present application shortens the path for the lubricating oil to reach the cylinder head.
The cylinder oil duct assembly 20 includes a cylinder oil inlet passage 21, the cylinder oil inlet passage 21 is communicated with the middle of a cylinder main oil duct 22, and cylinder inclined oil ducts 23 for supplying oil to the main journal and the connecting rod journal are uniformly communicated with the cylinder main oil duct 22 at intervals in the radial direction. The lubricating oil is further branched to the main journal and the connecting rod journal in the cylinder oil inlet passage 21.
An oil cooler 24 is connected in series between the cylinder oil inlet passage 21 and the cylinder main oil passage 22. The filtered engine oil is divided into two paths, one path of the engine oil is led to the cylinder body, and after being cooled by the engine oil cooler 24, the engine oil enters the main oil duct 22 of the cylinder body, and then the engine oil supplies oil to the piston cooling nozzle and lubricates a main journal and a connecting rod journal. The other path does not require cooling.
The cylinder cover oil passage assembly 30 comprises a cylinder cover front-section oil inlet passage 31, the cylinder cover front-section oil inlet passage 31 is branched into a cylinder cover rear-section oil inlet passage 32 and a tensioner oil passage 40, and a supercharger 50 is connected in series between the cylinder cover front-section oil inlet passage 31 and the cylinder cover rear-section oil inlet passage 32. On the head front section oil inlet 31, there is a branch to the supercharger 50 and the tensioner oil passage 40. Since the head portion is far from the oil pump and is high in height, a supercharger 50 is connected in series to the oil passage.
The upper end of the cylinder cover rear oil inlet channel 32 is communicated with one end of the transverse oil channel 33, and the upper parts of the two ends of the transverse oil channel 33 are respectively communicated with a first vertical oil channel 34 and a second vertical oil channel 35. The middle part of the first vertical oil passage 34 is communicated with a hydraulic tappet oil passage 36 for supplying oil to a hydraulic tappet, and the upper end of the first vertical oil passage 34 is communicated with a cylinder cover upper oil passage 37 for supplying oil to a VVL, a high-pressure oil pump and a camshaft journal on a cylinder cover. The second vertical oil passage 35 supplies oil solely to the VVT oil passage 38. The oil inlet channel 32 at the rear section of the cylinder cover is divided into two channels, one channel leads to the cylinder cover and the cover cap, oil is supplied to the VVL, the high-pressure oil pump, the camshaft journal and the hydraulic tappet through the first vertical oil channel 34, and the other channel rises to the cylinder cover through the second vertical oil channel 35 and independently supplies oil to the VVT. This minimizes unnecessary circulation of the lubricating oil in the oil gallery, thereby reducing energy loss. In addition, lubricating oil does not pass through a cylinder oil duct, is directly filtered out from a machine and then flows to a cylinder cover, the pressure is high, the pressure change is quick correspondingly, and parts with harsh requirements on the pressure and the adjusting speed of engine oil are met to the maximum extent.
The oil supply assembly 10 includes an oil pump 11 disposed below an oil pan, an oil inlet end of the oil pump 11 is integrated with an oil collector 12, and an oil outlet end of the oil pump 11 is integrated with an oil filter 13. The oil filter 13 is integrated on the oil pan; the engine oil at the outlet of the engine oil pump 11 is filtered by the machine, and then begins to be shunted through the oil outlet on the oil pan, one path of the engine oil is shunted to the cylinder body, and the other path of the engine oil flows to the cylinder cover. The oil collector 12 sucks up the lubricating oil from the oil pan and performs primary filtration. The oil is pressurized by the oil pump 11 and flows into the oil filter 13, which saves about half the length of the oil gallery in this connection compared to conventional oil gallery arrangements.
Claims (9)
1. An engine lubrication circuit comprising an oil supply assembly (10) located at the bottom of an engine, characterized in that: an oil outlet of the oil supply assembly (10) is branched into a cylinder oil duct assembly (20) for supplying oil to a cylinder and a cylinder cover oil duct assembly (30) for supplying oil to a cylinder cover.
2. The engine lubrication circuit according to claim 1, characterized in that: the cylinder body oil duct assembly (20) comprises a cylinder body oil inlet channel (21), the cylinder body oil inlet channel (21) is communicated with the middle of a cylinder body main oil duct (22), and cylinder body inclined oil ducts (23) for supplying oil to a main journal and a connecting rod journal are uniformly communicated at intervals in the radial direction of the cylinder body main oil duct (22).
3. The engine lubrication circuit according to claim 2, wherein: an oil cooler (24) is connected in series between the cylinder body oil inlet channel (21) and the cylinder body main oil channel (22).
4. The engine lubrication circuit according to claim 3, wherein: piston cooling nozzles (25) are uniformly arranged on the cylinder main oil gallery (22) at intervals in the radial direction, and the piston cooling nozzles (25) are located between two adjacent cylinder inclined oil galleries (23).
5. The engine lubrication circuit according to claim 1, characterized in that: the cylinder cover oil duct assembly (30) comprises a cylinder cover front-section oil inlet duct (31), the cylinder cover front-section oil inlet duct (31) is branched into a cylinder cover rear-section oil inlet duct (32) and a tensioner oil duct (40), and a supercharger (50) is connected in series between the cylinder cover front-section oil inlet duct (31) and the cylinder cover rear-section oil inlet duct (32).
6. The engine lubrication circuit according to claim 5, wherein: the upper end of the cylinder cover rear oil inlet channel (32) is communicated with one end of the transverse oil channel (33), and the upper parts of the two ends of the transverse oil channel (33) are respectively communicated with a first vertical oil channel (34) and a second vertical oil channel (35).
7. The engine lubrication circuit according to claim 6, wherein: the middle part of the first vertical oil duct (34) is communicated with a hydraulic tappet oil duct (36) for supplying oil to a hydraulic tappet, and the upper end of the first vertical oil duct (34) is communicated with a cylinder cover upper oil duct (37) for supplying oil to a VVL, a high-pressure oil pump and a camshaft journal on a cylinder cover.
8. The engine lubrication circuit according to claim 7, wherein: the second vertical oil passage (35) is used for independently supplying oil to the VVT oil passage (38).
9. The engine lubrication circuit as recited in claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein: the oil supply assembly (10) comprises an oil pump (11) arranged below an oil pan, the oil inlet end of the oil pump (11) is integrated with an oil collector (12), and the oil outlet end of the oil pump (11) is integrated with an oil filter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039704.4U CN216691206U (en) | 2021-12-03 | 2021-12-03 | Engine lubricating oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039704.4U CN216691206U (en) | 2021-12-03 | 2021-12-03 | Engine lubricating oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691206U true CN216691206U (en) | 2022-06-07 |
Family
ID=81838264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123039704.4U Active CN216691206U (en) | 2021-12-03 | 2021-12-03 | Engine lubricating oil way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691206U (en) |
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2021
- 2021-12-03 CN CN202123039704.4U patent/CN216691206U/en active Active
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